Really, anything would work, and would help fill in the gas between BD sizes. Metolius and Wild Country are both poular options.

I would look into the Totem Cams, though. Innovative design, and seem to be growing is popularity. They would definately offer something different to the quiver, and that is the point of getting a different brand of cams to round out the rack, isn't it?

I would look into the Totem Cams, though. Innovative design, and seem to be growing is popularity. They would definately offer something different to the quiver, and that is the point of getting a different brand of cams to round out the rack, isn't it?

Unless they've changed, Totems only go up to roughly #1 camalot size.

I'm very happy with doubles in the C4 range- if i had to pick a different cam, it'd be WC, only because Metolius' cams only go up to a bit bigger than a #2 (unless you get their supercams).

In those sizes I had quads before I got anything else. Even then I bought Trango 7's & an 8 mostly to save a couple of bucks. The Trango 7 is slighty bigger than a #2 C4 so if you are in doubt of which one (#2 or #3 camalot) to grab the Trango will usually work. The Trango 8 is completely eclipsed by a #3 C4 so there's no point in having it other than to save money. You can't go wrong with C4's in those sizes, if you decide to get rid of them you can sell them immediately here, or on e-bay, for almost what you pay for them.

So I say get the C4 triples. Smaller definitely branch out, and bigger maybe as well. The distance between the new C4 #3 & #4 is hard for me to judge, (The Trango 9 works great here- it's almost exactly the same size as the old 3.5).

Another vote for WC Heliums. The purple #3 in an ideal placement is the same as a slightly flared 2 Camalot or a slightly over-cammed 3 Camalot. Same goes for the #4 Helium (silver) between the 3 & 4 Camalots. Seems like WC did this intentionally. Smart chaps over there.

The metolius MasterCams get a little floppy in the larger sizes and don't get bigger than a bd #2. I have a #2 and #1 link cams and they obviously cover tons and tons of ranges. The biggest is only as big as a #2 but I find they fin in nicely.

For the gaps in the mid-large sizes, I like tech friends. Sizes 1.5/2/2.5/3) are good to fill gray areas in camalot sizes (I would skip on the #1 which is basically identical to an orange metolius, as well as the 3.5/4 which overlap completely with the blue and grey camalots). If you were asking about camalots (before c4) I would recommend the #4 friend to fill the gap between the #3 and #4 unless you can find a #3.5 (grey) camalot (GOOD LUCK WITH THAT). This is just my biased opinion, metolius powercams have also been good fillers in my experience and they may be easier to find.

On the small side (smaller than .5 camalot), I like metolious cams (any style) in the orange/yellow/blue. If you want to go really small, I think Black and Blue Aliens are the best for really small (but still would rather have a bomber nut).

I carry a gold OP link cam in addition to a single or double rack of BD C4s if I'm on a climb where I might need to double or triple up on hand sized pieces. I've found that at least for me I rarely need to do more than supplement a single rack of cams with select doubles for most routes or doubles with an extra triple or two. The link cam covers a range of .75-2, so I feel that I save weight by only having to haul 1 cam that I may use instead of three of which at least 2 will probably be on my harness by the top of the climb. Granted the crags in my area usually lack sustained splitter cracks so my rack preference may just be a function of local geology.

There's an emerging opinion that Totem cams are the best cams on the market. Do a little searching and you'll find lots of opinions, including on this site.

In view of the Totem's features, whether the slight variations in size ranges afforded by other cams is arguably the wrong way to think about versatility. The Totems, because of their significantly narrower head width and ability to handle flared and shallow placements, will go all kinds of places your C4's and anything else you replace them with won't, and that will make your rack far more versatile than anything you can achieve with DMM, WC, and Metolius cams.

The only exception I can think of to this perspective is if you do a lot of desert climbing, in which case Metolius Fat Cams probably make more sense.